First of all, I recommend that you purchase the Falcon Guide to Birding Florida by Brian Rapoza, which gives you different birding circuits and a description of where specific species can be seen.
I highly recommend Green Cay Wetlands, Wakodahatchee Wetlands, and Loxahatchee NWR in Palm Beach county for waders and photography. Key bird species seen there in winter include all the typical herons and egrets (except Reddish), Wood Stork, Anhinga, Sora, Purple Gallinule, Limpkin, and Snail Kite (at Loxahatchee).
I can also highly recommend Everglades NP (for diversity and your best chance for an early Swallow-tailed Kite), the west coast of Florida (for shorebirds), Lucky Hammock (for raptors and wintering flycatchers such as Scissor-tailed and Least), C-357 Sparrow Fields (for sparrows, Dickcissel, White-tailed Kite), and some of the parks in Miami-Dade (for wintering warblers, vireos, tanagers, West Indian vagrants).
Further north, Merritt Island is excellent for waterfowl, more shorebirds, and Florida Scrub-Jay. Viera Wetlands is also excellent with more waterfowl and Crested Caracara.
Let us know if you have any other questions,
Carlos
Carlos